A small block of mass m is kept on a rough inclined surface of inclination θ fixed in an…
Physics · JEE Advanced · NTA Exams — Work, Energy and Power
A small block of mass m is kept on a rough inclined surface of inclination θ fixed in an elevator. The elevator goes up with a uniform velocity v and the block does not slide on the wedge. The work done by the force of friction on the block in a time t will be:
- Zero
- mgvt cos2
- mgvt sin2
- \(\frac{1}{2}\) mgvt sin2
Answer
(C) mgvt sin2
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